These pages describe in detail an abrupt about face in the U.S. from no sweeping law on disability civil rights to the Americans With Disability Act, which is often called the ADA.. There are 52 countries that now have such laws. in 2008, The Disability Treaty was passed and has been ratified by 151 countries.
The piece is the story of how that happened.
Ed Roberts was at the start of this progression, although he was only one in an ocean of hundreds of thousands of average people and advocates pushing for change. His role is acknowledged carefully and accurately.